Kacper Koscierski (; born 23 June 2007) is a German professional footballer who plays as a right-back for Bochum.
Koscierski is a youth product of SV Höntrop, before moving to the youth academy of Bochum in 2017. On 30 October 2023, he signed his first professional contract with Bochum. On 1 April 2025, he signed another long-term contract with the club. He made his senior and professional debut with Bochum in a 2âÂÂ0 Bundesliga win over FC St. Pauli on 17 May 2025.
Born in Germany, Koscierski is of Polish descent. He is a youth product of Germany, having played up to the Germany U18s in 2024.